Nano.gov - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
54% 
Page structure
95% 
Link structure
87% 
Server
0% 
External factors
100% 
SEO Score
Response time
1.48 s
File size
68.50 kB
Words
409
Media files
46
Number of links
35 internal / 12 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home | National Nanotechnology Initiative
The length of the page title is perfect. (373 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langen
charsetutf-8

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Page quality

Content
(Critically important)
There are only 409 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 27.67 words is high.
24% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
6 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 31 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
Some tags are too long. With 72 characters this one is longer than 70 characters:
"official website of the united states national nanotechnology initiative"
Image SEO
(Somewhat important)
3 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
.../files/inline-images/flag-favicon-57.pngUS gov site
/sites/default/files/logo_1.pngHome
/sites/default/files/2025-05/jh.jpgjh
/sites/default/files/2025-05/chp.jpgchp
/sites/default/files/2025-05/wsu.pngwsu
/sites/default/files/2025-05/brown.pngbrown
/sites/default/files/2021-10/doe.pngDOE
/sites/default/files/2021-10/dod.pngDOD
/sites/default/files/2021-10/nasa.pngNASA
/sites/default/files/2021-06/hhs%20fda.pngHHS FDA
/sites/default/files/2021-06/usda.pngUSDA
/sites/default/files/2021-06/usda%20fs.jpgUSDA FS
/sites/default/files/2021-06/nrc.gifNuclear Regulatory Commission
/sites/default/files/2021-06/bsee.pngBureau of Safety and Environmental Enforcement
/sites/default/files/2021-06/br.jpgBureau of Reclamation
/sites/default/files/2021-06/doi%20usgs.pngDOI USGS
.../default/files/2021-06/hhs cdc atsdr.jpgHHS cdc atsdr
/sites/default/files/2021-06/dol%20osha.pngDOL OSHA
/sites/default/files/2021-06/doed.pngDepartment of Education
/sites/default/files/2021-06/itc.pngInternational Trade Commission
/sites/default/files/2021-06/doj%20nij.pngDOJ NIJ
/sites/default/files/2021-06/doc%20bis.pngDOC Bureau of Industry and Security
/sites/default/files/2021-06/doc%20eda.pngDOC Economic Development Administration
/sites/default/files/2021-06/doc%20ita.jpgdoc ita
...ites/default/files/2021-06/doc uspto.jpgdoc uspto
/sites/default/files/2021-06/nist.jpgnist
/sites/default/files/2021-06/Ic%20dni.pngIc Dni
/sites/default/files/2021-06/dotr.pngdotr
/sites/default/files/2021-06/dos.pngdos
/sites/default/files/2021-06/hhs%20nih.jpghhs nih
/sites/default/files/2021-06/ostp.pngostp
/sites/default/files/2021-06/omb.pngOMB
/sites/default/files/2021-06/dhs.gifDepartment of Homeland Security
.../default/files/2021-06/hhs cdc niosh.gifDepartment of Health and Human Services, National Institute of Occupational Safety and Health
/sites/default/files/2021-06/cpsc.jpgConsumer Product Safety Commission
/sites/default/files/2021-04/NSF-280px.pngNational Science Foundation
/sites/default/files/2021-04/EPA-280px.pngEnvironmental Protection Agency
/sites/default/files/2021-04/DOT-280px.pngDepartment of Transportation
/sites/default/files/pubs.jpgNo alt attribute provided
...default/files/inline-images/IMG_1082.JPGmeetings
/sites/default/files/nanoed1.pngNo alt attribute provided
...inline-images/symposium quick link_0.jpgfacilities
...lt/files/inline-images/youtube_small.pngNNCO Youtube
...t/files/inline-images/LinkedIn_small.pngNNCO LinkeIn
...lt/files/inline-images/twitter_small.pngNNCO Twitter
/sites/default/files/logo%20white.pngNo alt attribute provided

Page structure

H1 heading
(Critically important)
The H1 heading is empty
Headings
(Important)
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Empty heading
H2 NNCO Navigation
H2 Quick Links
H2 News from the NNI community
H2 Sign up for email alerts and updates
Some anchor texts are used more than once.
2 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 12 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.nano.gov/Anchor Skip to main content
https://www.nano.gov/IMG-ALT Home
A-TITLE Home
/about-nanotechnologyAbout Nanotechnology
/national-nanotechnology-initi...National Nanotechnology Initiative
/events-initiativesEvents
https://www.nano.gov/news-impactNews & Impact
/reports-resourcesReports & Resources
/about-nni/nncoABOUT NNCO
https://www.jhuapl.edu/news/ne...New window External Subdomain View Details
https://penntoday.upenn.edu/ne...New window External Subdomain Text duplicate View Details
https://news.wsu.edu/press-rel...New window External Subdomain Text duplicate View Details
https://www.brown.edu/news/202...New window External Subdomain Text duplicate View Details
/about-nanotechnologyText duplicate About Nanotechnology
/national-nanotechnology-initi...Text duplicate National Nanotechnology Initiative
/events-initiativesText duplicate Events
https://www.nano.gov/news-impactText duplicate News & Impact
/reports-resourcesText duplicate Reports & Resources
/publications-resourcesNo Text
/publications-resourcesPublications
/events/past-eventsSubdomain IMG-ALT meetings
/events/past-eventsNew window Subdomain Meetings and Events
/nanoeducatorsSubdomain No Text
/nanoeducatorsSubdomain Featured Post
/anniversarysymposiumNew window Subdomain IMG-ALT facilities
/anniversarysymposiumNew window Subdomain Nanotechnology Anniversary Symposium
https://blog.seas.upenn.edu/pe...New window External Subdomain Engineers discover a new class of materials that passively harvest water from air
https://www.fau.edu/newsdesk/a...New window External Subdomain ‘Sharkitecture:’ A Nanoscale Look Inside a Blacktip Shark’s Skeleton
https://penntoday.upenn.edu/ne...New window External Subdomain World’s first patient treated with personalized CRISPR gene editing therapy through CHOP and Penn Med collaboration
https://news.wsu.edu/press-rel...New window External Subdomain 3D printing technology improves comfort, durability of ‘smart wearables’
https://news.feinberg.northwes...New window External Subdomain Regenerating Eyedrops May Help Damaged Corneas Heal
/resources/research-community/...more »
https://www.nano.gov/Nano.gov Home
https://www.nano.gov/No Text
https://www.nano.gov/contactContact Us
https://www.youtube.com/channe...External Subdomain IMG-ALT NNCO Youtube
https://www.linkedin.com/compa...External Subdomain IMG-ALT NNCO LinkeIn
https://twitter.com/nninanonew...External IMG-ALT NNCO Twitter
https://www.nano.gov/Subdomain www.nano.gov
/about-nanotechnologyNew window Text duplicate About Nanotechnology
/national-nanotechnology-initi...New window Text duplicate National Nanotechnology Initiative
/events-initiativesNew window Text duplicate Events
https://www.nano.gov/news-impactNew window Text duplicate News & Impact
/reports-resourcesNew window Text duplicate Reports & Resources
/copyrightinfoCopyright Information
/privacypolicyPrivacy Policy
https://www.nano.gov/linkpolicyLink Policy
/nnilogoandnncosealNew window About NNI Logo and NNCO Seal

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.nano.gov/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The X-powered header is sent within the response header. (unnecessary)
Performance
(Somewhat important)
The page response time is slow (1.48 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page loads 119 CSS files. This may affect the page load time negatively.
This page loads 31 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (69 kB).

HTTP Response Header

NameValue
dateSun, 27 Jul 2025 18:31:20 GMT
serverApache
x-powered-byPHP/8.1.27
cache-controlmax-age=180, public
x-drupal-dynamic-cacheHIT
content-languageen
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
expiresSun, 19 Nov 1978 05:00:00 GMT
varyCookie
x-generatorDrupal 10 (https://www.drupal.org)
x-drupal-cacheHIT
last-modifiedWed, 30 Jul 2025 18:29:44 GMT
etag"1753900184"
content-length70151
content-typetext/html; charset=UTF-8
strict-transport-securitymax-age=31536000; includeSubDomains
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 398 referring domains.
This page has 1,600 backlinks.
This page has backlinks from 345 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

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Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
National52%Check
Nanotechnology51%Check
National Nanotechnology51%Check
National Nanotechnology Initiative51%Check
Initiative50%Check
gov48%Check
NNI43%Check
Meetings41%Check
Symposium41%Check
NNCO40%Check
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